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If x,y, and z are nonzero numbers, is xz = 12?(1)$${x}^{2}yz= 12xy$$(2)$$\frac{z}{4}=\frac{3}{x}$$
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If $$\sqrt {\frac x y}=n$$ what is the value of $$x$$?(1)$$yn=10$$(2)$$y=40$$ and $$n=\frac1 4$$
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Is r greater than 0.27?(1)r is greater than$$\frac1 4$$(2)r is equal to$$\frac3 {10}$$
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OG18-定量推理
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If x and k are integers and $$({12}^{x})({4}^{2x+1})=({2}^{k})({3}^{2})$$, what is the value of k?
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If u, v, and w are integers, is u > 0 ?(1) $${u}={v}^{2}+{1}$$(2) $${u}={w}^{4}+{1}$$
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When the positive integer n is divided by 13, the remainder is 4. What is the remainder when 2n – 3 is divided by 13 ?
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If $${x}^{3}{y}^{4}={5000}$$, is y = 5? (1) y is a positive integer. (2) x is an integer.
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If $$\mid M+4\mid =2$$, what is the value of M?(1) M<0(2) $${M}^{2}+{8}{M}+{12}={0}$$
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Which of the following is the lowest positive integer that is divisible by 2, 3, 4, 5, 6, 7, 8,and9?
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Magoosh
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Hal has 4 girl friends and 5 boy friends. In how many different ways can Hal invite 2 girls and 2 boys to his birthday party?
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Magoosh
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If 3 apples and 4 bananas costs $1.37, and 5 apples and 7 bananas costs $2.36, what is the total cost of 1 apple and 1 banana?
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If$$ k \neq 0, k \neq±1$$, and $$({k^{3}xkxk^{4}})^{2}\over{k^{n}xk}$$=$$k^{14} $$, then n =
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Magoosh
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If $$ k \neq 0$$ and $$k \neq±1$$, and $$({k^{3}×k×k^{4}})^{2}\over{k^{n}×k}$$=$$k^{14} $$, then n =
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Magoosh
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In the infinite sequence 13, 17, 21, 25, 29, . . . , where each term is 4 greater than the previous term, the 46th term is
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Magoosh
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If the average (arithmetic mean) of x, y, and 20 is 11, then the average of 2x + 3, 2y - 4, and 8 is
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Magoosh
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The average (arithmetic mean) of 4 different integers is 75. If the largest integer is 90, what is the least possible value of the smallest integer?
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Magoosh
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If $$72^{4}$$ is the greatest common divisor of positive integers A and B, and $$72^{6} $$is the least common multiple of A and B, then AB=
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Magoosh
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Which of the following is the correct ordering of $$2\sqrt{13},4\sqrt{3},5\sqrt{2}$$ and$$3\sqrt{6}$$ ?
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Magoosh
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The nth term$$(t_n)$$ of a certain sequence is defined as $$t_n = t_{n-1} + 4$$. If$$ t_1= -7 $$then $$t_{71}$$ =
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Magoosh
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If a triangle in the xy-coordinate system has vertices at
(-2 , -3), (4, -3) and (28, 7), what is the area of the triangle?
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